Common materials have a white icon and give basic bonuses to stats like Attack or Speed.

Rare materials have blue icons and provide more interesting bonuses, such as increased damage inflicted to or reduced damage taken from particular creature types, a chance to gain or inflict various status effects, or increased resource gain.

Legendary materials have orange icons and are by far the most powerful enchantments. An artifact enchanted with a legendary material either gives its wielder a full-time buff (e.g. the creature always has Mend), or grants the ability of a different creature. For every creature ability in the game, there is a legendary material which can enchant an artifact with that ability. In this way, it is possible to combine any two abilities in the game in the same creature. Certain combinations of abilities can be very powerful, and so obtaining legendary materials is a primary focus in the early and mid-game.

When attacked, and the damage would kill this creature, one of your creatures is instead killed at random and this creature gains a Barrier that absorbs damage equal to the slain creature's Maximum Health.